This is a Evga GTX 480 SC with box and all accessories...Only ran for a few hours in SLI with my other one. Just paid $550 for it at the egg.
Great clocker and can be registered by you for lifetime warranty...$490

My Apevia Case...Has been modified on top for rad....Very good case with lots of air flow.Will take $95 for it shipped.

The 280 has no warranty that i know of.
Bought it used but works very well and runs low temps.
Will guarantee for 24 hours while you test it.
Dont know if it has ever been registered..you might be able to.